The bout is part of a Nov. 3 event at Chesapeake Energy Arena in Oklahoma City. Main-card fights, including one with headliner Daniel Cormier, air on Showtime following prelims on Showtime Extreme.

McMann, an Olympic silver medalist in wrestling, returns to the cage after helping to propel the upstart Invicta FC to big online-viewership numbers. She took on Shayna Baszler in Invicta 2’s headliner and won a unanimous decision. Still undefeated, she also brings big-show experience from Titan Fighting Championships and ProElite.

Carmouche and McMann, in fact, were close to meeting in Invicta FC to determine the promotion’s inaugural bantamweight champ. Now, both are in the gunning for a shot at Strikeforce bantamweight champ Ronda Rousey.

Carmouche also fought at Invicta FC 2 and submitted Kaitlin Young, which built on a first-round stoppage win over Ashleigh Curry at the promotion’s inaugural event. Under the Strikeforce banner, Carmouche holds a 2-2 record. In March 2011, the former U.S. Marine dominated a title fight against then-bantamweight champ Marloes Coenen before submitting in the fourth round.